Enriching redox active sites by interconnected nanowalls-like nickel cobalt phospho-sulfide nanosheets for high performance supercapacitors

作     者：Kaiyang Zhang Yazhou Xu Yingchun Lin Yushuai Xiong Jun Huang Li Wang Mengke Peng Ting Hu Kai Yuan Yiwang Chen Kaiyang Zhang;Yazhou Xu;Yingchun Lin;Yushuai Xiong;Jun Huang;Li Wang;Mengke Peng;Ting Hu;Kai Yuan;Yiwang Chen

作者机构：Institute of Polymers and Energy Chemistry(IPEC)College of ChemistryNanchang UniversityNanchang 330031China School of Materials Science and EngineeringNanchang UniversityNanchang 330031 China Institute of Advanced Scientific Research(iASR)Jiangxi Normal UniversityNanchang 330022China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2021年第32卷第11期

页      面：3553-3557页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.52073137,21704038,51763018) the NSFC-DFG Joint Research Project(No.51761135114) the Natural Science Foundation of Jiangxi Province(Nos.20192BCB23001,20202ZDB01009) 

主　　题：Nickel cobalt phospho-sulfide Electrodeposition Specific capacitance Asymmetric supercapacitors Energy density 

摘      要：Although transition metal phospho-sulfides deliver outstanding electrochemical performance,complex preparation methods hindered their further ***,we report a facile one-step electrodeposition approach to deposit interconnected nanowalls-like nickel cobalt phospho-sulfide(Ni-Co-P-S)nanosheets onto the surface of carbon *** thin Ni-Co-P-S nanosheets with multi-components and synergetic effects delivered rich active sites,further enhancing reversible ***,the as-prepared Ni-Co-P-S electrode materials exhibit excellent electrochemical performance in a three-electrode system,showcasing a high specific capacitance of 2744 F/g at 4 A/*** full supercapacitors based on Ni-Co-P-S as positive electrode and active carbon as negative electrode showcase a high specific capacitance of 110.9 F/g at 1 A/g,impressive energy density of 39.4 Wh/kg at a power density of 797.5 W/kg in terms of excellent cycling stability(91.87%retention after 10,000 cycles).This simple electrode position strategy for synthesizing Ni-Co-P-S can be extended to prepare electrode materials for various sustainable electrochemical energy storage/conversion technologies.